172941892 has 6 divisors (see below), whose sum is σ = 302648318. Its totient is φ = 86470944.

The previous prime is 172941889. The next prime is 172941917. The reversal of 172941892 is 298149271.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 136749636 + 36192256 = 11694^2 + 6016^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21617733 + ... + 21617740.

Almost surely, 2^172941892 is an apocalyptic number.

It is an amenable number.

172941892 is a deficient number, since it is larger than the sum of its proper divisors (129706426).

172941892 is a wasteful number, since it uses less digits than its factorization.

172941892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43235477 (or 43235475 counting only the distinct ones).

The product of its digits is 72576, while the sum is 43.

The square root of 172941892 is about 13150.7373177324. The cubic root of 172941892 is about 557.1430730283.

The spelling of 172941892 in words is "one hundred seventy-two million, nine hundred forty-one thousand, eight hundred ninety-two".